Torch angle setting apparatus

Abstract

A torch angle setting apparatus includes vertical links arranged in a vertical direction, the respective lower end of which is supported on a frame so as to be pivotally rotatable, and coupled with horizontal links at an upper end and an intermediate position of the vertical links for constituting a three-dimensionally parallel link. The torch angle setting apparatus also includes an inclining member constituted of a motor, an arm and a transmission member for inclining the vertical links by pivotally rotating the arm, a swinging member constituted of a swinging motor, a conducting member, splines for, including the inclining member, swinging conically the vertical links on fulcrums at the frame as a center, and a cutting torch moving in parallel to the vertical links. Accordingly, the simplification and miniaturization of the structure can be achieved in spite of the number of the hoses and cables connected to the torch when a bevel cutting is carried out with respect to the material to be cut by using a gas cutting torch or a plasma cutting torch.

What is claimed is:  
     
       1. A torch angle setting apparatus comprising: 
       a frame mounted on a movable cart;  
       a three-dimensionally parallel link in which a plural of vertical links are arranged in a vertical direction, in which each end of the vertical links is supported to said frame so as to be pivotally rotatable, and in which said vertical links are coupled to horizontal links at several points in a height direction;  
       an inclining member inclining the vertical links constituting said threedimensionally parallel link;  
       a swinging member for swinging, including said inclining member, said vertical links constituting said three-dimensionally parallel link; and  
       a cutting torch inclining or rotating accompanied by swinging motion of the vertical links attached to said three-dimensionally parallel link.  
     
     
       2. The torch angle setting apparatus according to claim  1 , wherein said vertical links and said horizontal links are made partly or entirely of flexible members. 
     
     
       3. The torch angle setting apparatus according to claim  1 , wherein an inclining angle as well as swinging motion of the cutting torch are set by adjustment of extents of inclination and swinging motion of said vertical links. 
     
     
       4. A torch angle setting apparatus comprising: 
       a frame mounted on a movable cart;  
       a three-dimensionally parallel link in which a plural of vertical links are arranged in a vertical direction, in which each end of the vertical links is supported to said frame so as to be pivotally rotatable, and in which said vertical links are coupled to horizontal links at several points in a height direction;  
       an inclining member inclining the vertical links constituting said three-dimensionally parallel link;  
       a swinging member for swinging, including said inclining member, said vertical links constituting said three-dimensionally parallel link; and  
       a cutting torch moving in parallel to the vertical links accompanied by swinging motion of the vertical links attached to said three-dimensionally parallel link,  
       wherein said cutting torch is inclined or rotated by swinging motion of said three-dimensionally parallel link without rotation of said three-dimensionally parallel link.  
     
     
       5. The torch angle setting apparatus according to claim  2 , wherein an inclining angle as well as swinging motion of the cutting torch are set by adjustment of extents of inclination and swinging motion of said vertical links.